Correlation between the Systemic Immunoinflammatory Index and Platelet–Lymphocyte Ratio in Patients with Adenomyosis

Table 4

Threshold effect analysis for the relationship between the SII and PLR.

	PLR
	Adjusted β value (95% CI)	P-value
Model I
One linear effect	0.10 (0.09, 0.11)	<0.0001
Model II
Breakpoint (k)	1,326.47
<1,326.47 segment effect 1	0.14 (0.12, 0.16)	<0.0001
>1,326.47 segment effect 2	0.02 (−0.01, 0.05)	0.2461
LRT test	<0.001

Note. Model I, linear analysis; Model II, nonlinear analysis. LRT test, logarithmic likelihood ratio test. (P-value < 0.05 means Model II is significantly different from Model I, which indicates a nonlinear relationship). Adjustment variables: age, BMI, gravidity, parity, menstrual regularity, dysmenorrhoea, menstrual volume, uterine leiomyoma, adenomyoma, hypertension, diabetes, endometriosis, benign adnexal tumors, uterine volume, uterine length/width/thickness, menopause, anemia, and hemoglobin.